/Engine/Plugins/VirtualProduction/Takes/Source/TakeRecorder/Public/Recorder/TakeRecorder.h
Retrieve a multi-cast delegate that is triggered before initialization occurs (ie. when the recording button is pressed and before the countdown starts)
[FOnTakeRecordingPreInitialize](API\Plugins\TakeRecorder\Recorder\FOnTakeRecordingPreInitialize) & OnRecordingPreInitialize()